springboot2+kafaka2搭建

最新推荐文章于 2025-03-12 02:26:17 发布

原创最新推荐文章于 2025-03-12 02:26:17 发布 · 963 阅读

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#kafaka #springboot

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环境：

linux服务器

jdk1.8+

zookeeper

springboot2.1.4+kafaka2.2.5

开始搭建：

1.pom.xml:

<dependency>
            <groupId>org.springframework.kafka</groupId>
            <artifactId>spring-kafka</artifactId>
            <version>2.2.5.RELEASE</version>
        </dependency>

2.application.yml:

spring:
  kafka:
    bootstrap-servers: 外网:9092
    producer:
      retries: 1
      batch-size: 16384
      buffer-memory: 33554432
      key-serializer: org.apache.kafka.common.serialization.StringSerializer
      value-serializer: org.apache.kafka.common.serialization.StringSerializer
      bootstrap-servers: 外网:9092
    consumer:
      group-id: face-group
      auto-offset-reset: earliest
      enable-auto-commit: true
      auto-commit-interval: 100
      # 指定消息key和消息体的编解码方式
      key-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      value-deserializer: org.apache.kafka.common.serialization.StringDeserializer
      bootstrap-servers: 外网:9092

3.定义消息实体

kafakaMessage.java:

@Data
public class Message {
    private Long id;    //id

    private String msg; //消息
}

4.消息发送类：

KafkaSender.java

@Component
@Slf4j
public class KafkaSender {

    @Autowired
    private KafkaTemplate<String, String> kafkaTemplate;

    private Gson gson = new GsonBuilder().create();

    //发送消息方法
    public void send() {
        kafakaMessage message = new kafakaMessage();
        message.setId(System.currentTimeMillis());
        message.setMsg(UUID.randomUUID().toString());
        
        log.info("+++++++++++++++++++++  message = {}", gson.toJson(message));
        kafkaTemplate.send("zhisheng", gson.toJson(message));
    }
}

5.消息接收类

KafkaReceiver.java：

@Component
@Slf4j
public class KafkaReceiver {

    @KafkaListener(topics = {"zhisheng"})
    public void listen(ConsumerRecord<?, ?> record) {

        Optional<?> kafkaMessage = Optional.ofNullable(record.value());

        if (kafkaMessage.isPresent()) {

            Object message = kafkaMessage.get();

            log.info("----------------- record =" + record);
            log.info("------------------ message =" + message);
        }

    }
}

6.kafaka的一些其他命令：

1,start kafaka server:（需要先开启zookeeper）

> bin/kafka-server-start.sh config/server.properties
[2013-04-22 15:01:47,028] INFO Verifying properties (kafka.utils.VerifiableProperties)
[2013-04-22 15:01:47,051] INFO Property socket.send.buffer.bytes is overridden to 1048576 (kafka.utils.VerifiableProperties)
...

2,创建topic:

> bin/kafka-topics.sh --create --bootstrap-server localhost:9092 --replication-factor 1 --partitions 1 --topic test

3,查询topic:

> bin/kafka-topics.sh --list --bootstrap-server localhost:9092
test

4,测试发送信息：（注意，这里面关于localhost肯恩恶搞会有坑，下一篇文章会介绍）

> bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test
This is a message
This is another message

5，测试接收信息：（注意，这里面关于localhost肯恩恶搞会有坑，下一篇文章会介绍）

> bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test --from-beginning
This is a message
This is another message

更多精彩等你探索：

http://kafka.apache.org/quickstart